Little movement today... unless you're talking about the changes for Iron Man 2, where Don Cheadle will take over for Terrence Howard.
Reports are that the studio and Howard were unable to reach an agreement regarding compensation. Howard was looking for a significant raise to reprise his role as Jim Rhodes in the upcoming sequel -- probably to buy more baby wipes.
Just bask in the Terrence for a while... yeah... that's it. Goes down smooth, don't it?